Home / 5,639.95-8,455.37-2,355.50

Finding the Fourth Proportional to 5,639.95, 8,455.37 and 2,355.50

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Solution

The fourth proportional to 5,639.95, 8,455.37 and 2,355.50 is: 3,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.95 : 8,455.37 = 2,355.50 : x
  2. Step 2: Convert to fraction form
    5,639.95/8,455.37 = 2,355.50/x
  3. Step 3: Cross multiply
    5,639.95x = 8,455.37 × 2,355.50
  4. Step 4: Simplify right side
    5,639.95x = 19,916,633.40
  5. Step 5: Solve for x
    x = 19,916,633.40/5,639.95
  6. Step 6: Final answer
    x = 3,531.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.